very cool question: learn some new tricks, and get 10 points, why not?!
Hint to spare the pain : string(NaN)==
Return the Fibonacci Sequence
Determine Whether an array is empty
Magic is simple (for beginners)
Divisible by 3
Fast 1-D Convolution (valid shape)
Integer complexity (Large numbers)
Histogram of histogram
Cody meets Xiangqi: foresee the unseen (Part 1)
Group-wise Euclidean distance
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